I'm having the exact same problem...
Got 2 brand new Blu-Ray disc..... nothing! Plays regular DVDs fine?
Expensive regular DVD player... what's up Samsung?
I got my Samsung BD-P1500 about 2 months ago, and didn't have any problem with it until today. It had played every movie properly. Today I bought the Kingdom of Heaven Blue Ray and tried to play it, but the player was not able. It attempted to load the disc for a couple of minutes, a message reading "this disc cannot be played" was displayed and then the disc was ejected. I thought perhaps it was a problem with the disc, so I tried to play all of my other discs that have previously played correctly on this machine, and the same problem happened. I went to the Samsung website and downloaded the latest Firmware and updated my blue ray player, but I am still having the same result. DVD's still play, but no blue rays do.
Is this a problem with the settings or is my blue ray player ready for the garbage already?